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Dr. Duke's Phytochemical and Ethnobotanical Databases
U.S. Department of Agriculture
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Calcium-Antagonist

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List of activity chemicals.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Chemical Name Dosage Reference
REPANDULINE IC50=2.3 uM pig *
RESERPINE 1 uM rbt, rat, gpg *
RHEIN 9/10 aloeemodin *
RHYNCHOPHYLLINE 10.1 uM rat *
ROSMARINIC-ACID IC50=1.2 uM rbt *
ROSMARINIC-ACID-MONOMETHYL-ESTER IC50=1.2 uM rbt *
RYANODINE 10 uM rbt *
RYANODINE IC50=45 uM *
S-(-)-N-(14-METHYL-3-(13-METHYL-TETRADEC-CIS-4-ENOYL-OXY)-PENTADECANOYL)-GLYCINE IC50=10.9 uM *
SAFROLE IC50=58 uM *
SAFROLE IC50=57 uM gpg *
SANGUINARINE IC50=15 uM gpg *
SANTONIN IC50=876 uM gpg (weak activity) *
SCHIZOTENUIN-A IC50=1.2 uM rbt *
SCYTONEMIN-A 5 ug/ml *
SOLANINE mus *
SOYASAPONIN-A-1 2 ug/ml rat *
SOYASAPONIN-A-2 2 ug/ml rat *
STREPTOTHRICIN-B IC50=0.071 uM *
STREPTOTHRICIN-F IC50=50 uM (weak activity) *
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List of Activity Plants.
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Plant Name Common Name Chemical Count Total Parts Per Million
Sechium edule Chayote 2 11, 815
Selenicereus grandiflorus Night-Blooming Cereus; Queen-of-the-Night 1 0
Senna alata Ringworm Bush 3 0
Senna alexandrina Alexandran senna; True Senna; Indian Senna 5 40, 008
Senna obtusifolia Sicklepod 4 10, 220
Senna occidentalis Coffee Senna 5 2, 880
Serenoa repens Saw Palmetto; Scrub-Palmetto 2 8, 036
Sesamum indicum Sesame; Benneseed; Beni; Ajonjoli (Sp.); Sesamo (Sp.) 2 20, 410
Sicana odorifera Cassabanana 1 1, 270
Sida rhombifolia Broomweed; Teaplant 1 9, 090
Sideritis germanicolpitana 1 105
Sideritis scardica Balkan Sideritis 1 370
Siegesbeckia orientalis Hsi Chien; Saint Paul'Swort 1 5, 320
Silybum marianum Milk Thistle; Lady's Thistle 3 16, 360
Simmondsia chinensis Jojoba 1 1, 410
Sinapis alba White Mustard 2 3, 282
Sinomenium acutum Ching-Feng-Teng 2 360
Skimmia arborescens Skimmia 3 0
Skimmia japonica Japanese Skimmia 3 4, 080
Smilax officinalis Sarsaparilla 2 1, 670